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. Author manuscript; available in PMC: 2013 Dec 1.
Published in final edited form as: Ultrasound Med Biol. 2012 Sep 10;38(12):2198–2207. doi: 10.1016/j.ultrasmedbio.2012.07.020

Figure 1.

Figure 1

The experiment setup for the ultrasound test: FMA signal is created by the arbitrary signal generator (NI PXI 5421) and amplified to drive the transmitter. Bone sample is submerged in degassed water, placed in the middle of the ultrasound pathway and surrounded by sound absorbent material. The received ultrasound signal is amplified by pulse/receiver and digitized by high speed digitizer (NI PXI 5122).